30/07/2026
OCTOTHORPE
The word might be new to you, but you already know the thing it is a name for very well. It is indeed the sign that is called a hashtag, number sign or pound (the imperial weight, not the sterling £) sign.
But why "octothorpe"? The etymology is both clear and dubious: clear in that "octo-" comes from Latin and means "eight", while "thorpe" is from the Anglo-Saxon and Old Norse "ðorp" and means "town" (hence the Afrikaans and Dutch "dorp" and the German "Dorf").
"Octothorpe, the story goes, is a made-up word, supposedly made by technicians in the Bell laboratory. The "octo" supposedly refers to the eight points of the sign, and one theory is that someone thought the whole sign looks like a small town surrounded by eight fields, hence the "thorpe" part.
Whatever its origin, the word is one of those delighful items in the English vocabulary.